last updated:
21/8/26
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#rocks#beginner

rocks

Rocks are naturally occuring solid aggregates of one or more minerals. They are classified into three main types.

Diorite

Igneous

Formed from cooled magma or lava

Sandstone

Sedimentary

Formed from sediments that are compacted and cemented

Gneiss

Metamorphic

Fromed when existing rocks are changed by heat or pressure

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